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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

兩母體生存函數比較之研究 / To study about the comparing two population's survival functions

傅鼎傑, Ting,Chieh Fu Unknown Date (has links)
對於生存時間的資料而言,通常我們所想要研究瞭解的是,至少存活到某特定時間點的機率,而這個機率亦即生存分析中的生存函數(survival function)。當有兩個不同的母體存在時,為了要知道這兩個母體的生存函數是否相同,在統計方法上,我們將進行一些檢定,常用的有Gehan-Wilcoxon和Cox-Mantel之兩樣本檢定,後來又有修飾型的Kolmogorov-Smirnov檢定。但是,前兩種檢定方法,只對此兩組生存函數呈現某特殊型式時,具有好的檢定力。因此,透過一些實證的研究,將上述檢定方法做有系統的整理,進而發展出一套簡單又有效率的檢定程序。再者,若檢定得此兩個母體之生存函數不相等時,如何利用Bootstrap方法,進一步對兩組生存函數之特定生存機率點或生存時間點所分別對應之生存時間或生存機率差距做推論與比較,本文將有詳細她說明;以提供研究人員更多有效的資訊,不再僅止於檢定虛無假設是否拒絕而已。最後,我們又藉由推廣上述Bootstrap方法,將其運用到檢定方法上,而另外發展出一種新的兩母體生存函數之檢定方法。 / When two different populations exist, we will take some tests by Cehan-Wilcoxon, Cox-Mantel or Modified Kolmogorov- Smirnov in satistical way. Therefore we develope a simple and efficient test process from arranging above test ways system- atically through some real study. How to use Bootstrap way to infer the difference of survival time or survival probability of specular point. We infer Bootstrap way on test work and then develope a new two populations survival function test way.

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